Oil refiners



H. E. KASO OIL REFINERS Jan. 30, 1968 Filed June 28, 1965 T 5 I 57'.l ui

INVENTOR. HARRY KASO ATTORNEY United States Patent Ofi ice 3,366,551 Patented Jan. 30, 1968 3,366,551 OIL REFHWERS Harry E. Kaso, 3303 S. Corona, Englewood, Colo. 80110 Filed June 28, 1965, Ser. No. 467,563 2 Claims. (Cl. 196-46.1)

ABSTRACT OF THE DISCLOSURE An oil refiner having heating, refining, cooling and filtering stages through which the oil passes and an electrical system for automatically controlling the temperature and length of time the oil remains in each stage and lights connected to the system which indicate in which stage the oil is at any particular time.

The present invention relates to oil refiners and more particularly to a refiner for refining used motor oil.

It is an object of the invention to provide a compact refiner which is substantially automatic in operation and is portable.

Another object is to provide an oil refiner in which the various stages in the refining process are visually indicated.

It is another object to provide an oil refiner having an electrical circuit which allows continuous operation of the refiner and which cuts oil the electricity after each phase of the refining process is completed and prevents any phase which has been shut ofi? from restarting.

A further object is to provide an oil refiner which removes suspended solids and volatile impurities from oil.

Another object is to provide an oil refiner which will shut itself off when the oil has been refined.

It is another object to provide an oil refiner which is efficient in operation and economical to manufacture.

With these and various other objects in view, the invention may consist of certain novel features, as will be more fully described and particularly pointed out in the specification, drawing and claims appended hereto.

Referring to drawing, FIG. 1 is a diagrammatic view of an oil refiner embodying the invention. FIG. 2 is a diagrammatic view of the electrical system of the oil refiner.

In the drawings, wherein like characters are used to indicate like parts,

A storage tank is indicated at mounted on frame 11 provided with dollies 12. The waste oil is placed in this tank and sulphuric acid added to it. The tank is provided with an electric heating element 13, shown in broken lines, a drain cock 14 is provided to let out any sludge that may settle to the bottom of the tank.

A temperature gauge 15 is connected to the interior of tank 10. The tank has an exhaust vent 16, and an encircling shield 19. A covered opening is provided to allow the adding of waste oil and the sulfuric acid. The thermostat circuit breaker 17 in power line 18 shuts otf power when the temperature of oil in tank 10 reaches 400. After storage tank 10 is cooled to approximately 120, tank 10 is then connected to the rest of the system which is mounted on frame 11a which is also provided with dollies 12. A hose 21 is connected to refining tank 38 and tank 10 and is provided with a quick coupling 22. Valve 23 is then opened. Timer 24 is set, closing on switch 25 and starting automatic operation.

As shown in FIG. 2 closing switch 25 activates relay 28 closing switch 29 and opening switch 30; switch 25 also activates relay 31 closing switches 32 and 33. With the closing of switches 29 and 33, electrically operated pump 36 is started, which pumps oil from storage tank 10 through line 37 into an insulated refining tank 38;

solenoid operated valve 39 is opened allowing a compound consisting of catalysts activated clays or other well known refining compounds to flow into tank 38 from hopper 40 and the green light 41 lights up on control panel 42.

When tank 38 is filled to the required level indicated at 45 the timer 24 opens switch 25 which shuts off relay 28 opening switch 29 which shuts off pump 36 and closes switch 30, at the same time closing solenoid valve 39 and turning ofi green light 41. Switches 32 and 33 are held closed by relay 31.

The closing of switch 30 activates relay 48 thereby closing switch 49 and opening switch 50. This action starts electric heaters 51 in the tank 38 through a magnetic control switch 52 and starts motor 53 which rotates the agitator 54 and turns on the red light 55 on control panel 42. Tank 38 is also provided with an exhaust or vent.

When the oil in tank 38 is heated to 500 F. the thermostat control switch 57 opens cutting the power to relay 48. This action opens switch 49 and closes switch 50 cutting oil heaters 51, agitator motor 53 and turning off the red light 55. Closing switch 50 starts pump 58 which is in the line 61 connecting tank 38 with cooling coil 63 and starts fan motor 59 which drives fan 69 and turns on the blue light 60. With the starting of pump 58 oil is pumped from tank 38 through line 61 into the cooling system generally designated at 62, then through cooling coil 63 into line 64 through the pressure switch 65 and into the filter 66 which may be a paper filter or other suitable type of oil filter. The cooling system 62 consists of a coil 63 and a fan 69 driven by motor 59. An air shield 70 encircles the cooling system 62.

When the pressure on switch 65 reaches approximately 5 pounds per square inch, the electrical contacts of the switch close thereby activating relay 73 which closes switch 74 and opens switch 75. The opening of switch 75 shuts off the power to the relay which causes switches 32 and 33 to open, cutting off the power for pump 58, fan motor 59 and the blue light 60 which are supplied through circuit line 76, pressure switch 65 and switch 74. When the pressure through pressure switch 65 drops to approximately 1 pound per square inch, the switch 65 opens shutting oil the power to relay 73 opening switch 74 and closing switch 75, thus cutting ofi all power to all cycles. The circuit is also provided with a guarded emergency switch 77 which can stop any cycle at any time.

The refined oil goes through the filter 66 and through outlet 80 into a storage tank 81 from which the refined oil may be drained through outlet 82 which has a hand operated valve 83.

It is to be understood, however, that this disclosure is by way of illustration and not limitation and that various other embodiments of the invention will become apparent to those skilled in the art without departing from the scope of the claims and spirit of the invention.

I claim:

1. An oil refiner comprising an oil storage tank having a thermostatically controlled electric heating element therein, a refining tank, an electrically driven agitator in said refining tank, an electric heating element in said refining tank, a hopper connected to said refining tank through a solenoid operated valve, a pipe connecting the storage tank to the refining tank, an electrically driven pump connected to said pipe for pumping oil from the storage tank to the refining tank, a timer electrically connected to said pump, solenoid valve, agitator, refining tank heater and an electric indicator light, a thermostatic relay connected to said refining tank and electrically connected to the refining tank heater, agitator and a second indicator light, a cooling coil connected to the refining tank, an electric pump connected to the refining tank and cooling coil for pumping oil from the refining tank through the cooling coil, a filter box connected to the cooling coil, a receiving tank connected to the filter box and a pressure actuated switch connected to the filter box and receiving tank and electrically connected to the pump which is connected to the refining tank and cooling coil and a third indicator light said third indicator light being connected to said pressure activated switch.

2. An oil refiner comprising an oil storage tank having thermostatically controlled electric heating element therein, a refining tank, an electrically driven agitator in said refining tank, an electric heating element in the refining tank, a hopper connected to said refining tank through a solenoid operated valve, a pipe connecting the storage tank to the refining tank, an electrically driven pump connected to said pipe for pumping oil from the storage tank to the refining tank, a cooling coil connected to the refining tank, an electric pump connected to the refining tank and cooling coil for pumping oil from the refining tank through the cooling coil, an electric fan positioned to cool the cooling coil, a filter box connected to the cooling coil, a pressure actuated electric switch connected to the cooling coil and filter box, a receiving tank connected to the filter box, a timer electrically connected to the pump between the storage tank and refining tank and connected to the heating element in the refining tank, the agitator in the refining tank, the solenoid operated valve between the hopper and the refining tank, and a relay which is connected to the cooling fan and the pump between the refining tank and cooling coil and the pressure operated switch.

References Cited UNITED STATES PATENTS 2,367,851 1/1945 Eaton 210-104 X 2,440,680 5/1948 Gerin 210-104 X FOREIGN PATENTS 651,937 10/1937 Germany.

SAMIH N. ZAHARNA, Primary Examiner.

REUBEN FRIEDMAN, Examiner.

J. ADEE, Assistant Examiner. 

